Perpetual calendar



1. L. HusoN. 'PERPETUAL CALENDAR.

APPLICATION FILED IAN. I5. |919.'

M03 Lloe 103;l Lao:

M70/mns nutren stares" JAMES L. EUTsoE, or sinELEYvILLE, TENNESSEE.

rEnrETUA-L CALENDER.

speeifieat'ionpf tettrs raamt.

Application led Januarir v15, 1919il Serial No. 271,238.V

- To all whom t may concern.'

Be it known that I, JAMES L. HIrrsoN, a citizen of the United States, and a resident of Shelbyville, in the county of Bedford and State of Tennessee, have invented a new and Improved Perpetual Calendar, of which the following is a full, clear, and exact description. f

The object'of the linvention is to provide a new and improved perpetual calendar adapted to indicate any -desired -date of either the Julian or Gregorian system. Another object is to permit the user to readily set the calendar for any date of past, present or future years. 'Another object is to permit the user to readily set the calendar for the present month and to allow of malring the desired changes at the end of a month Aor atthe end of a year for the next ensuing month of a year. f Another object is to provide a perpetual calendar which is exceedingly simple and durable in construction and not liable to get easily out of order.

With these and other objects in view, the invention consists of certain novel features of construction as hereinafter shown and. described and then specifically pointed out in the claims. K Y- A practical embodiment of the invention is represented in the accompanying draw.- ings forming a part of this specification, in which similar characters of reference indi-f cate corresponding parts in y all the views.

Figure 1 is a plan view of the perpetual calendar in flat form for use on a desk or similar support; 1 x

Fig. 2 is a similar view'of the same with the face plate removed;

Fig. 3 is a sectional side elevation of the saine on the line 3-.3 of Fig. 1;

Fig. t is a transverse section of the saine on the line 4 4; of Fig. 1.

The perpetual calendar illustrated in Figs. 1, 2, 8 anda, is mounted on a'ixed member 100 having a back 101 and a top plate102, and the back 101 is provided with sidewise extending guideways 103, 104.- and 105, in which are mounted to slide sidewise movable members 106, 107 and 108. rlhe movable member 106 is provided on its face with indicating characters 109 representing the t days of the week arranged one alongsiee the other and duplicated, as plainly shown in Fig. 2. The movable member 107 is provided with roups of indicating characters 110 disposedT in columns and representing Patented sept. 121 1920.'

days ofthe month, the columns being adapted to register lwith the columns of the movable member 106. The movable member 108 is provided with groups of indicating characters 111 representing` the names of the months and disposed in columns adapted to register'with the columns ofthe movable members 106, 107. A single group of indicating characters encompassing seven columns on each ofthe movable members 106, 107 and 108 is adapted to appear ata time in the opening 112 formed in theface plate 102, as plainly indicated in Fig. 1.

Theface plate 102 is provided on itsupper side and tothe left of the central opening 112 with two groups of indicating characters 115, 116,V of which the group 115 represents centuries of the old or Julian style and the group 1.16 represents centuries of vthe new style according to the Gregorian one of a series of apertures120 formed in the face plate 102 at the corresponding columns ofthe groups of indicating characters 115 and 116.l Y On the upper face of opening 112 is arranged a group of indicatinocharacters 125 re resentinfrthe t earse e y in a century arranged in columns spaced the face plate 102l and at the right-hand side of the `central the same distances apart as 'theother columns containing the indicating `characters 109, 110, 111, 115 and 116. An indicator 126 is attached to the right-hand end of the movable member 108 and extends through'aslot 127 formed in 'the yface plate 102 below'the group of indicating characters 125. The free end of the indicator 126 is provided with a pin 128 adapted to engage any one of a series of apertures 129 formedy in the columns containing the indicating characters 125. An indicator 180 is attached to the movable member 107 and appears within the opening 112. The indicator 130 is provided at its free end with a pinl 131 adapted to engage any one of a series of aperturesk Y so as to lock the movable members 106, -107 Y Y ing indicating characters 111 on the movable4 member 108. lt is understood that the in-` dicators 117, 126 and 180 are preferably made of spring metal to permit ot readily engaging their pins 119, 128 and 131 with the apertures 120, 129 and 132, respectively,

and 108 in the adjusted positions.

ln order to set the perpetual calendar for kany one month in any year the user shifts the movable members 106, 4107 `and 108 according to the century, the year in the century and the month of the year. rIhus itift is' desired to set the calendar say forthe month of September, 1918, the user first takes hold of the indicator 117 and -moves the same sidewise until the vindicator is in register-with the column containing the cen-V tury, that is, in this particular case the rst column containing the numeral 19 under the group marked Centuries, new style. The operator next takes hold of the indicator 126 and moves the same sidewise until it registers with the column of the group of indicating characters 125 containing the year of the century, that is, in the given .case 18 which 'is found in the second column. The user next takes hold of the indicator 180 and moves the same sidewise until Ait registers with the column of indicating characters 111 representing the month of September, found in the second column,.as shown in Fig. 1. lt will be seen that the calendar is now -set for the month of Sep tember, 1918, and inthe opening 112 appear the days of the week, the daysof Athis month, and the name of this month at the indicator 130. At the end of thevmonth of September the operator takes hold of the `indicator 180 and moves the same .to 'the right vto the third column on the. indicating member 108 appearing in the opening 112 and having the name October thereon. rlhe calendar is now set for the month ot October, 1918. Y At the end of the year the operator takes hold of the indicator 126 and moves the same :to

kthe right to the next followingvcolumn containing -the numeral 19 and at fthe .end of the century the operator vtakes hold o the indicator 117 and shirts the same tothe right to the next column containing the numeral 20 under the group of indicatcharacters marked Centuries, new style. lt will be noticed that the months otJanuary and February are repeated three times in diierent columns and sundry appear printed in red to be used with the respective month in leap year. The leap years in the group of characters 125 are also pret erably indicated in red in contradistinction to the other years which are printed in black.

Having thus described my invention, l claim as new and desire to secure by Letn ters Patent 1. Aiperpetual calendar, comprising members movable one relative .to the other and provided with separate groups of indicating characters, of which one group represents old and new style centuries;7 another group represents years in a century, another group represents days of the month,77 another group represents days of the week, and-.another group represents the names of the months, of vthe year, the characters in each group being arranged in columns spaced equal distances apart in vthe several groups, and indicators on the movable members, and of which one is attached to the member having the days of the week and indicates on fthe centuries, another is attached'to the memberha Ting the names of the months and indicates on the years in a century and another is attached to the member vhaving the days of the month and indicates on the names ot the months.

2. A lperpetual calendar, comprising a fixed member having an opening and provided with groups of indicating characters representing old and new centuries and years in a century, movable members held movably on the :said iXed member independent one of the other, one of the movable members vhavingg-roups of indicating characters Vrepresenting the days of the Weel; and having an indicator indicating on the said old and newv style centuries, another of vthe movable members having groups; of indicating characters representing the "names'of the month and having an indicator indicating on the years of a century and another or' the lsaid movable members having groups of indicating characters representing :the days of lthe month and having an indicator indicating on the said names of themonth, each group of indieating characters of .the movable members being adapted to appear inthe said opening.

JAMES L. HUTSUN. i 

